We are proud to announce that on February 22nd 2016 the RFQ supermodules boxes were received at Rokkasho BA site. The three supermodules were delivered separately by INFN, already preassembled and aligned in INFN Legnaro (Italian National Institute of Nuclear Physics). The RFQ, a 10 m long structure composed by 18 modules flanged together will be the longest and will accelerate the highest intensity beam in the world (D+ particle from 0.1 MeV to 5 MeV at 125 mA in CW).
All the supermodule packages have been stored in the vault area waiting to start installation shortly, as it has been scheduled to start from March 31st. All the IFMIF community wants to thanks all INFN personel involved in the design, fabrication, assembly and testing of such high technology subsystem.
Last week additional components delivered from CIEMAT were also received in Rokkasho, the spanish institute on energy and environmental sciences, including the HEBT cooling skid, the third RF module (after the already installed two first modules) and some ancillary components from the MEBT.
During this first half of year 2016 most components for next LIPAc Commissioning phase B are expected to be delivered to Rokkasho and to be installed, including the whole RFQ system, MEBT, diagnostics and D-Plate, RF Power system for RFQ and Bunchers, cooling system and the associated local control systems for all the above.
The 7th LIPAc Technical Meeting (LTM07) was held at Rokkasho, BA site Fusion Research Center (Japan) from 15th to 17th June 2015, and on the following two days Satellite meetings with more detailed technical discussions were held.
More than 40 experts from CEA (Saclay, France), INFN (Legnaro, Italy), JAEA (Rokkasho, Japan), CIEMAT (Madrid, Spain), F4E (Garching, Germany)and the IFMIF/EVEDA Project Team attended the meeting with additional European experts contributing remotely by videoconference.
The technical information that was presented at the meeting highlighted the significant progress achieved for the various components since the last LTM06 in November 2014.
A particular highlight was the positive results that are presently obtained from the Injector commissioning as shown by the operation leader, Yoshikazu Okumura.
The main outcomes presented during this meeting are listed below:
The Injector commissioning resumed on April 22nd with the objective to complete the phase A1.2 (H+ beam, energy 50keV,variation d.c.,UIE,Itot) including the characterization and optimization of the proton beam. Performances of 100kV/155mA @ 20% duty cycle were reached during this campaign, allowing optimization of the beam emittance. Continuous wave (CW) operation was also tested successfully at 120 mA/100 kVeV, with 650 W RF power and SCCM gas flow rate.
The next important step is expected in July with the proposed start of deuterium operation (phase A1.3) after the Facility inspection by Radiation Authority.
RF power systems
Installation of transformers and the HV breakers on the electrical platform has started with JAEA contractor NKK. The contract for the remaining cable trays will be launched soon.
The delivery of the HVPS and RF power system for the RFQ is expected by the end of July 2015 at Rokkasho and its installation will take place upon its arrival.
The RFQ super modules are nearing completion at INFN Legnaro (Italy) and will be shipped in December 2015 after the final acceptance test at Legnaro in November 2015. Cooling skid, piping and accessories will be shipped by the end of September 2015. The remaining components will be shipped to Rokkasho by February 2016.
MEBT: much work has been completed in the last months to finish the manufacturing and the tests of the main components and auxiliaries. CIEMAT continue to push to have the beamline integrated for test by the end of this summer, with the aim to have the MEBT delivered to Rokkasho at the beginning of 2016.
The LPBD detailed design is on going, was showed in the presentation its readiness for construction. Details for its cooling system were also discussed during the LTM.
The SRF Linac design is completed and manufacturing contracts for the critical components have been placed. The licensing activities are on-going.
The D-Plate is almost completed and will be ready for shipment by November 2014. Some activities of alignment of the components need to be confirmed by ensuring the reproducibility of the ideal accuracy expected.
The HEBT and Beam Dump main components designs partially completed as already discussed in the previous LTM06 held last November 2015. Technical specifications are nearing completion and several manufacturing contracts have been launched
Writing of the beam dump cooling system specification will start soon
PPS-MPS,are now operational for injector commissioning. However, some modifications will be necessary for the next phase, especially with respect to the integration into the CCS, which is considered as an important milestone;
A site visit of the Accelerator Prototype Building was held, giving all attendees the opportunity to visit the vault and the RF area.
A pleasant event on the second day of the meetings was organized in a typical Japanese Restaurant in Rokkasho called “Darumaya”.
See you next LTM08 in Garching!
LTM08 will be held on Tuesday 24th, Wednesday 25th and Thursday 26th of November 2015.
Prof. G.Rostagni, former RFX president and historical member of BA SC (Broader Approach Steering Committee) and Dr. G. Piovan, RFX director, visited Rokkasho on 23rd October 2015. Prof. G. Rostagni is our most senior supporter, following various attempts to visit Rokkasho, it has been possible his visit after almost 7 years from the last time at Rokkasho
The agenda of the meeting was eventful, started with the greeting visit to the deputy mayor of Rokkasho Susumu Hashimoto-san accompanied by G. Pruneri, K. Sakamoto and K.Hirata respectively; Section leader ILIC Unit, deputy IFMIF/EVEDA Project Manager and JAEA site Public Affair Manager.
To follow, chronologically, were visited: Japan Nuclear Fuel Limited Facility (JNFL), Wind Power Generation System and Solar Power Generation System, all facilities are located within Rokkasho area. Lunch took place at Rokka Pokka, the famous SPA in Rokkasho.
In the afternoon were made some presentations by K. Tobita (IFERC Director) on IFERC status and future plan, G. Pruneri and K. Okiai, respectively on IFMIF/EVEDA status and the introduction of activities foreseen by JAEA, for a post BA project (A-FNS)
Afterwards took place a visit to the LINAc Accelerator, Computer Center and Demo R&D Center, with a comprehensive detailed explanation of the facilities, respectively given by K. Sakamoto-G.Pruneri, Y. Ishii-K.Tobita and H. Tanigawa – S. Nakamichi
Finally the visit ended at Misawa, to the Takara-sushi restaurant for a dinner, with a very delicious food and with a pleasant attendance of BA activities’ management: S. Ohira, K. Sakamoto, K.Tobita, K. Okumura, K. Ochiai, G. Pruneri and F. Scantamburlo.
16th meeting of the Broader Approach Steering Committee
Naka (Japan), 21 April 2015
The Broader Approach Agreement between the EU and Japan supports the ITER project and the realization of fusion as a clean and sustainable source of energy for peaceful purposes.
The Broader Approach Agreement encompasses three research projects:
“IFMIF/EVEDA”, to prepare for the construction of a materials test facility for future fusion reactors;
The International Fusion Energy Research Centre (IFERC);
The Satellite Tokamak Programme JT-60SA, a major upgrade of the tokamak JT-60
The working site for IFMIF/EVEDA and IFERC is Rokkasho (Japan), the site of the Satellite Tokamak Programme is Naka (Japan).
The Broader Approach is now in its eighth year and has become a model for effective international scientific collaboration, strengthening cooperation between the EU and Japan in delivering fusion as an energy source for the future.
Today (21 April 2015) representatives of the EU and Japan met at Naka Fusion Institute (Naka, Japan) for the 16th meeting of the Broader Approach Steering Committee and approved the 2014 Annual Reports and updates of the Project Plans for the three projects.
The initial beam test of the injector of the Linear IFMIF Prototype Accelerator in Rokkasho began producing scientific results in November 2014. The EVEDA Lithium Test Loop in Oarai has successfully demonstrated stable lithium flow for IFMIF operating conditions and has now completed its mission. The Test Facility Validation activities have been successfully accomplished.
The Helios supercomputing system (Roku-chan) has been in routine use since 2012 by researchers from the EU and JA resulting in many high-quality scientific papers. The Intermediate Report on DEMO Design has been complied focusing on a technical perspective of DEMO on the basis of evaluation and assessment of critical design issues. The DEMO R&D project has studied the compatibility of SiC and SiCf/SiC composites with liquid Pb-Li alloy. The results have been added to the database for the study of the liquid blanket.
The main components manufactured in Europe – the Quench Protection Circuit, the High Temperature Superconducting Current Leads and the Cryoplant for the superconducting magnet, have now been delivered and are being installed. Nine of the ten Vacuum Vessel sections are already sitting on the base and the welding of the sections is progressing well.
These remarkable achievements were celebrated by a ceremony on 20th April attended by dignitaries from Japan and the EU which included representatives of the European Commission, France, Germany, Italy and Spain.
The Steering Committee expressed appreciation for the great efforts of the Aomori Prefecture and Rokkasho Village in producing high quality living and educational support for the EU researchers and their families in Rokkasho.
The 17th Broader Approach Steering Committee meeting will be held in Italy on 11 December 2015.
The 8th LIPAc Technical Meeting (LTM08) was held at the Garching antenna of Fusion for Energy (F4E) from 24th to 26th November 2015. More than 30 experts from different involved institutes, including CEA (Saclay, France), INFN (Legnaro, Italy), JAEA (Rokkasho, Japan), CIEMAT (Madrid, Spain), F4E (Garching, Germany) and the IFMIF/EVEDA Project Team; attended the meeting. In addition, Japanese experts from KEK and J-PARC were invited to attend on behalf of JAEA.
The first day was devoted to satellite meetings where the cryomodule assembly and licensing; and the control system were discussed in detail.
Detailed technical information was presented highlighting the significant progress that has been made for the manufacture and installation of various components since the previous LTM07 (held in Rokkasho on 15-17 June). The progress on Injector commissioning, as shown by the Deputy Director of the Department of Fusion Reactor Materials research at the JAEA Rokkasho Fusion Institute, Keishi Sakamoto, on behalf of Yoshikazu Okumura, the Head of the ILIC unit; was warmly appreciated.
Key activities which were completed on site during 2015 include:
29 June : Establishing the radiation controlled area
7 July : 1st D+ beam
15 July : Facility inspection
1 Sep : 1st arrival of the RF module to Rokkasho
9 Sep : Start phase A-2
22 Oct : Injector LCS upgrade
9-13 Nov : Injector resistor repair
The main outcomes presented during the meeting are listed below:
Injector commissioning resumed on 22nd April, and the first deuterium beam was produced two months later on 22nd July 2015 after receiving the authorization from the Regulatory Authority on 15th July. With the change of the plasma electrode aperture diameter from 10 mm to 12 mm, a 100keV/145mA/9.5% Deuteron beam was produced. The upgrade and integration of the Local Control System into Central Control System was completed on 23rd October.
RF power systems
Installation of seven HVPS’s and two RF modules for the RFQ, transformers and the HV breakers on the electrical platform was nearly completed. While the activity continues, there has also been much progress in the installation of cable trays inside the RF area.
The RFQ will be shipped from Legnaro (Italy) to Japan by air freight by the end of January 2016, while the associated cooling skid, piping and accessories will be shipped during December 2015. All remaining components will be shipped to Rokkasho by the end of April 2016.
On behalf of JAEA, Feedback was provided by Morishita-san explaining his experience of RFQ construction, installation and commissioning at J-PARC in Japan.
With the exception of the second buncher, for which the tests are ongoing, all MEBT subcomponents have passed their acceptance tests. The assembly of the subcomponents is approaching completion, and it is expected that the complete MEBT will be sent to Rokkasho by the end of January 2016.
Manufacture of The LPBD is underway, and will be completed in early 2016.
Manufacturing contracts for all critical components have been placed, and the tender process for a number of non-critical-path items has started. Licensing activities for the complete cryomodule continue, and informal approval for the cavity design has been given by KHK. Formal approval is expected soon.
Sakai-san (KEK) presented KEK’s experience of installation and commissioning of the cERL SRF LINAc. While the cERL LINAc is fundamentally different to IFMIF / EVEDA’s, the presentation provided useful insight which will be considered as the detailed cryomodule assembly procedure is developed.
Assembly of the D-plate is nearing completion, and the fully integrated and aligned assembly will be ready for shipment at the end of January 2016.
The water cooling skid was recently tested and is now ready for shipment. Preparation of the shipping contract is underway, and the skid will be shipped by the end of December 2015. The main components of the Beam Dump conceptually designed and the detailed design is progressing. Technical specifications for a number of HEBT components are nearing completion and several manufacturing contracts have been launched, particularly electro deposition for the inner cone which started in November 2015
The Personnel Protection System has been modified to comply with regulatory requirements. The Machine Protection System has been enhanced to comply with the evolving operational requirements for injector commissioning. The Injector LCS has been fully integrated into the CCS.
A pleasant event on the second evening of the meetings was held at restaurant “Maisberger hotel” at Neufahrn
Our 7th IFMIF Workshop took place during three days the 3rd week of May in Brasimone under the warm host of ENEA.
The scenarios we are living, with DONES in Europe and A-FSN in Japan being discussed, allows to state that this has been our last, so called, IFMIF Workshop, what does not mean that future similar encounters will take place.
The technical discussions were intense and fruitful, also were the unforgettable gastronomical satellite meetings organized by Gioacchino.
The Spanish Scientific Counsellor, Santiago Herrero Amigo, visited Rokkasho on 7 September and witnessed the recently arrived components of the RF Power system, one of the various top technology hardware of Spanish contribution to LIPAc.
In the afternoon, he had an official encounter with Mamoru Toda, the mayor of Rokkasho, accompanied by IFMIF/EVEDA Project Manager, Shigeru O’hira and IFMIF/EVEDA Project Leader, Juan Knaster.
We are proud to announce that the first components of the LIPAc’s RF Power System have arrived at Rokkasho site.
After a long sea travel from Spain, three containers reached Hachinohe port on 28th August. Devanning at the port and transportation from Hachinohe to Rokkasho took three days starting from 31st August.
Containers at Hachinohe Port (left); and truck loaded and ready to depart to Rokkasho (right)
A total of fifteen packages were delivered to Rokkasho site; including seven RF high voltage power supplies (HVPS), two RF Modules, three electrical distribution cabinets, and auxiliaries.
From 2nd to 4th September, NKK Company opened all the wooden crates and started the installation of the components, which is expected to be completed by the end of the month.
RF Power System’s wooden crates staged at the RF Power Bay Area (right) and two RF Modules (main and circulator platform) ready for its installation (right)
After almost five years since we arrived in Japan, my wife and I continue to astonish ourselves for the attractiveness and oddities that surround us.
We were impressed of the simplicity, morality and straightforwardness of the Japanese people; even though various events of daily life are often diametrically divergent and sometimes appear to me strange compared to the standards and customs of my home country, Italy.
For instance, it was a surprise to me to see the Japanese postman delivering the mail during wintertime; this might be normal worldwide, but in Japan, the peculiarity is that the postman delivers mail during winter, driving a motorcycle even during heavy snowfalls, with roads covered in white and slippery snow, and often icy! Saturday and Sunday they still work regularly, 365 days per year the service is available and very efficient.
In Italy, Postmen use as well the motorcycle or bike, season allowing, normally is preferable a small car.
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